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Barracuda Load Balancer ADC Vx Overview:

The Barracuda Load Balancer ADC Vx is a virtual appliance purpose engineered to maximize the scalability and availability of servers and services operating in virtual environments. This virtual load balancer efficiently distributes traffic among virtual servers using several algorithms. But this is just the start. Besides the advanced features for traffic optimization listed below, the Barracuda Load Balancer ADC Vx dashboard displays performance data that ranges from broad snapshots of overall traffic to granular data about the health and status of each virtual service and actual server— visibility essential for effectively managing virtual infrastructures.

Of special interest for websites that deliver high-bandwidth services such as streaming media is the unique server-direct-response mode. This mode distributes low-bandwidth requests across servers through the load balancer while high-bandwidth responses go directly from services to clients outside the load balancer. This prevents bottlenecking at the load balancer. Here are some of the other innovative ways the Barracuda Load Balancer ADC Vx optimizes and safeguards virtual infrastructures.

Ensure Application Scalability, Performance, and Security

The Barracuda Load Balancer ADC is ideal for organizations looking for a high-performance, yet cost-effective application delivery and security solution. With the broadest range of hardware and virtual models, the Barracuda Load Balancer ADC provides maximum flexibility for organizations looking to build highly secure and scalable application infrastructure, whether it's deployed on-premises or in the cloud.

The Barracuda Advantage

Proven technology that has blocked more than 11 billion real-world attacks

Control

Content routing and content rewrites enable full control of application traffic and customized application delivery based on users, regions, and/or devices. Client controls gives administrators the ability to throttle requests to ensure application availability even during periods of heavy traffic.

Microsoft Certified

The Barracuda Load Balancer ADC Vx has been the preferred solution for organizations looking to load balance and secure Microsoft applications. Certified configuration and deployment guides ensure organizations can quickly and easily scale Microsoft applications, while also securing them against targeted attacks or unauthorized access.

Features:

L4/L7 Load Balancing

The Load Balancer ADC can be deployed as a hardware or virtual appliance and can intelligently load balance hardware or virtual servers running any number of Layer 7 and Layer 4 protocols. These include HTTP/S, SMTP, IMAP, FTP/S, DNS, XML, TCP, and UDP, as well as a number of other common protocols. Additionally, it supports both IPv6 and IPv4 load balancing and can operate in full IPv6 or IPv4 networks, as well as mixed environments where an address translation is needed to bridge the IPv6 and IPv4 networks.

Intelligent Application Monitors

Intelligent traffic monitoring capabilities enable the Barracuda Load Balancer ADC to distribute traffic efficiently while ensuring high application availability. It monitors server health to determine that application servers are not only reachable, but alive. If the Barracuda Load Balancer ADC detects issues, it automatically removes downed servers from the server pool and rebalances traffic among the remaining servers. It has the ability to group servers in the application groups so that if a server in a group fails, it can automatically failover all traffic to the remaining application groups.

Global Server Load Balancing

For scalability and high availability across data centers, Barracuda Load Balancer ADCs can be deployed to balance traffic among different sites in different geographic regions. Organizations can route traffic using a variety of methods such as primary disaster recovery (DR) or closest geographical data center.

SSL Offloading

SSL transactions are resource intensive and can slow down application performance. Offloading the SSL transactions to Barracuda Load Balancer ADCs frees up application server resources to focus on delivering rich applications to end users and ensure application scalability. Barracuda Load Balancer ADCs support offloading standard 1024-bit SSL keys, as well as the more secure and more process-intensive 2048-bit SSL keys.

Authentication and Authorization

The Barracuda Load Balancer ADC fully integrates Active Directory or any other RADIUS or LDAP-compatible authentication services. Combined with the strong access control capabilities, administrators can provide granular control over user/group access to resources. This ensures that only authorized users will be able to reach applications, guaranteeing that non-authenticated traffic never crosses the DMZ.

HTTP Caching

Data Compression

To maximize outbound bandwidth, the Barracuda Load Balancer ADC can automatically compress content to minimize network traffic between application servers and the end user. Best of all, this capability is compatible with most modern browsers, requiring no additional software.

Content Routing

The Barracuda Load Balancer ADC has full traffic control and can route requests to servers based on region, device, browser, or a number of other factors. This enables organizations to deliver customized application responses to users.

Application Attack and DDoS Protection

The Barracuda Load Balancer ADC provides industry-leading security to help organizations secure critical applications. It protects against OWASP Top 10 attacks such as SQL Injection, Cross-site Scripting (XSS), and Cross-site Request Forgery (CSRF). Additionally, Barracuda Load Balancer ADCs have the ability to granularly control the number of requests to protect against rate-based attacks like Denial of Service (DoS) or Distributed Denial of Service (DDoS). Administrators have the ability to intelligently fingerprint and throttle or drop traffic based on IP or client.

Data Loss Prevention

The Barracuda Load Balancer ADC also offers outbound content inspection for Data Loss Prevention (DLP). It prevents data leakage by either masking or blocking responses containing sensitive information such as credit card numbers or any other custom data patterns.

Automatic Security Updates

The security capabilities of the Barracuda Load Balancer ADC are augmented by an extensive network of more than 150,000 sensors deployed worldwide that feed into Barracuda Labs. The sensors provide valuable data for the security research team to build new security definitions and automatically update units in the field. The ability to apply new definitions and “virtually patch” ensure the highest security posture for critical applications.

Microsoft Certified for Exchange and Lync

Barracuda provides a complete application delivery solution for Microsoft Exchange and Lync. Barracuda Load Balancer ADCs have been certified by Microsoft as a preferred Hardware Load Balancing solution since 2010. Our highly trained technical support engineers have worked with countless Barracuda customers and partners to design and implement robust solutions for scaling Exchange and Lync applications.

Pre-Built Templates for Microsoft Applications

Thousands of organizations from numerous verticals deploy Barracuda to ensure high availability, performance, and security of their critical Microsoft applications. There a number of certified deployments and solution guides for all commonly deployed models and versions of Exchange, SharePoint, Lync, Terminal Services, IIS, Threat Management Gateway (TMG) and other popular Microsoft applications. You can find all of our technical guides and solutions at our Barracuda Campus.

VDI

Many organizations are using desktop virtualization (VDI) to securely delivery Windows and other desktop applications. Desktop infrastructure is a mission critical application that needs to scale as the organization grows. It is also important this infrastructure be resilient in the face of operational and natural disasters. The key to scalability and reliability is to load balance critical pieces of the VDI infrastructure.

Management Features

Barracuda Virtual Appliance FAQ:

What is a "virtual appliance"?

A virtual appliance is a software image designed to run inside a virtual machine. When deployed inside a virtualization platform, such as VMware, multiple virtual appliances can share the physical resources of a single host computer while remaining logically isolated from each other. Barracuda Networks currently offers virtual appliance versions of many of its popular hardware appliance solutions to leverage the benefits of virtualization.

What are the benefits of Barracuda Virtual Appliances?

Barracuda Virtual Appliances provide the same technology found in the Barracuda Networks hardware solutions and are ideal for enterprises that are standardizing hardware platforms or with existing virtual environments. Barracuda Virtual Appliances can be deployed on standard virtualization platforms and can co-exist with other virtual machines, thereby enabling optimal usage of hardware resources. As the organization grows, virtual appliances can be scaled for capacity without changing any hardware or software configurations. Also, virtual appliances can be easier to backup and restore using standard mechanisms for disaster recovery.

What are the System requirements to run the Barracuda Virtual Appliance?

Are Barracuda Virtual Appliances as easy to deploy as the Barracuda Networks hardware appliances?

Yes. Barracuda Virtual Appliances are specifically designed for ease of deployment in new or existing virtualization environments. The virtual appliances are fully encapsulated with the virtual hardware configuration and the setup process is simple. Once the virtual appliance is installed, configuration and administration is through the same intuitive Web based user interface as that on the appliance. Instructions can be found in the online setup guides available as part of the download or under the Documentation section atwww.barracuda.com/virtualization.

Do the Barracuda Virtual Appliances receive Energize Updates?

Yes. The Barracuda Networks Energize Updates subscription provides the latest security updates and is an essential part of purchasing either a Barracuda Networks hardware solution or a virtual appliance.

How does an administrator interact with a Barracuda Virtual Appliance?

Once deployed, Barracuda Virtual Appliances are administered through the same simple Web based user interface found on the hardware equivalents. This makes it very easy for administrators of Barracuda Networks hardware appliances to support Barracuda Virtual Appliances without learning a new usage model.

Can I make copies of my Barracuda Networks virtual appliance and deploy them for redundancy?

Every active instance of a Barracuda Virtual Appliance must be supplied a unique license token that is obtained during the process of requesting an evaluation. If you choose the ZIP deployment method, the same ZIP file can be used for multiple deployments, but each deployment must be provisioned with a unique token. Cold backups, snapshots, host migration and other backup or disaster recovery operations are fully supported.

Can I cluster a Barracuda Virtual Appliance with its hardware counterpart?

Yes. The "Linked Management" feature can be used to cluster a combination of Barracuda Virtual Appliances and hardware equivalents as appropriate.

What is an OVF template?

Open Virtualization Format (OVF) is a standard to package and distribute virtual machines. It is a portable, platform independent file format that is supported by several hypervisors. An OVF file encapsulates the complete specification of a virtual machine including all the virtual disks, virtual hardware configuration (CPU, memory, networking) and storage. Barracuda Virtual Appliances are distributed as OVF templates that facilitate quick provisioning with little or no manual intervention.

How do I update the firmware on a Barracuda Virtual Appliance?

New firmware releases will be available periodically and are included in the Energize Updates subscription. Once the virtual appliance is deployed, administrators can check for available firmware releases and upgrade as appropriate.

How are the Barracuda Virtual Appliances priced?

Barracuda Virtual Appliances do not involve any per user or setup fees. A Barracuda virtual appliance is licensed for a certain number of cores. As the organization grows, administrators can easily expand the capacity of these virtual appliances by licensing them for additional cores as needed without the overhead of provisioning any additional hardware or software.

How can I evaluate a Barracuda Virtual Appliance?

A 30-day evaluation copy of any Barracuda Virtual Appliance can be obtained by filling the evaluation request form online at www.barracuda.com/virtualization. This will generate an email with download and activation instructions.